608 FAMILY VII. TETTIGONIID.E. THE CAMEL CRICKETS. 



I. HADENOECUS Scudder, 1862, 439. (Gr., "the nether world" 



-f- "to dwell in.") 



THE TRUE CAVE CRICKETS. 



Slender bodied cave crickets having the antennae very long and 

 slender (80 100 mm); face small, perpendicular; eyes small, 

 narrowly triangular; maxillary palpi very long and slender, sec- 

 ond joint twice, as long as first, third twice as long as second, and 

 one-fourth longer than fourth; fifth slightly longer than third, 

 its apical portion thickened, slightly curved and feebly cleft be- 

 neath at tip; vertex armed above with a small bilobed tubercle; 

 pronotum short, front margin rounded, hind one truncate ; lateral 

 l-.bes of pronotum longer than deep, extending but slightly below 

 those of meso- and metanotum ; fore and middle legs very long and 

 slender, their femora and tibire subequal, the former unarmed, 

 tibifie with 5 7 slender spines on each lower carina ; hind femora 

 unarmed, longer than body, their basal half much swollen; hind 

 tibiae one-third longer than femora, armed above on each carina 

 with numerous very fine, close-set inclined teeth, and with 8 or ! 

 pairs of much longer alternating distant movable spines, also 

 armed beneath toward apex with several spines; basal segment 

 of hind tarsi longer than the others combined, second segment 

 three times as long as third. Subgenital plate of male emarginate ; 

 styles wanting. Ovipositor swollen at base, nearly straight, its 

 apical portion feebly upcurved. 



Two species of these long-legged cave insects are known, both 

 described by Scudder and separated by him (1894, 22) as follows: 



KEY TO SPECIES OF HADENCECUS. 



a. Body pale testaceous; ovipositor nearly or quite as long as body; sub- 

 genital plate of male broadly emarginate at apex. 



286. SUBTEREANEUS. 



oa. Body dark brown; ovipositor only half as long as body; subgenital 

 plate of male narrowly emarginate at apex. 287. PUTEANUS. 



286. HADENCECUS SUBTEBEANEUS (Scudder), 1861, 8. Common Cave 



Cricket. 



Form subcylindrical, arched, rather robust, but less so than most spec- 

 ies of CeuthopMlus. Pale yellowish-brown; eyes black; dorsal segments 

 of abdomen often with more or less transverse fuscous blotches. Male 

 cerci as long as last four dorsal segments of abdomen, strongly tapering to 

 an acute point; apex of subgenital plate with a deep median U-shaped notch, 

 the projections each side narrow, cylindrical, obtuse. Apical fifth of ovi- 

 positor feebly upcurved, its lower margin tapering to a very sharp apex, 

 the inner valves serrulate beneath. Other structural characters as given 

 above. Length of body, $ and 9, 16 20; of pronotum, 4 4.5; of fore 



